CN219611503U - Motor cooling water channel structure - Google Patents
Motor cooling water channel structure Download PDFInfo
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- CN219611503U CN219611503U CN202320423325.5U CN202320423325U CN219611503U CN 219611503 U CN219611503 U CN 219611503U CN 202320423325 U CN202320423325 U CN 202320423325U CN 219611503 U CN219611503 U CN 219611503U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Motor Or Generator Cooling System (AREA)
Abstract
The utility model discloses a motor cooling water channel structure, and aims to provide a motor cooling water channel structure which can effectively improve the heat dissipation efficiency of a motor, thereby preventing the problems of motor efficiency reduction, service life shortening, epoxy expansion cracking and the like caused by overhigh temperature rise of the motor. The device comprises a shell, wherein the inner wall surface of the shell is a cylindrical surface, and a plurality of reserved channels which are distributed in an annular manner are arranged on the inner wall surface of the shell; the cooling water pipes are in one-to-one correspondence with the reserved channels, are embedded in the corresponding reserved channels, are distributed along the corresponding reserved channels in an extending mode, and the outer wall surface of the part of the cooling water pipe facing the inner wall of the reserved channel is a water pipe matching surface which is closely attached to the inner wall of the corresponding reserved channel; the outer wall surface of the part of the cooling water pipe facing the notch of the reserved channel is an arc-shaped matching surface, and the arc-shaped matching surface and the inner wall surface of the shell are positioned in the same cylindrical surface.
Description
Technical Field
The utility model relates to the field of motor cooling, in particular to a motor cooling water channel structure.
Background
With the continuous improvement of the motor performance, the continuous increase of the power density obviously increases the heat productivity of the motor, so that the problems of the motor such as the reduction of the efficiency, the shortening of the service life, the epoxy expansion cracking and the like seriously affect the service performance of the motor are caused. At present, an air cooling heat dissipation mode is generally adopted for heat dissipation of a motor, but the traditional air cooling heat dissipation mode is poor in efficiency, and the heat dissipation requirement of a high-power motor is difficult to meet. In view of this, how to develop a motor with a high-efficiency heat dissipation structure is a problem to be solved.
Disclosure of Invention
The utility model aims to provide a motor cooling water channel structure which can effectively improve the heat dissipation efficiency of a motor, thereby preventing the problems of motor efficiency reduction, service life shortening, epoxy expansion cracking and the like caused by overhigh temperature rise of the motor.
The technical scheme of the utility model is as follows:
a motor cooling water channel structure comprising:
the inner wall surface of the shell is a cylindrical surface, a plurality of reserved channels which are annularly distributed are arranged on the inner wall surface of the shell, and each reserved channel is sequentially distributed along the axial direction of the shell;
the cooling water pipes are embedded in the corresponding reserved channels, the cooling water pipes extend along the corresponding reserved channels, the outer wall surfaces of the part of the cooling water pipes facing the inner walls of the reserved channels are water pipe matching surfaces, the water pipe matching surfaces are matched with the inner wall surfaces of the corresponding reserved channels, and the water pipe matching surfaces are closely attached to the inner walls of the corresponding reserved channels; the outer wall surface of the part of the cooling water pipe facing the notch of the reserved channel is an arc-shaped matching surface, the arc-shaped matching surface covers the corresponding notch of the reserved channel, and the arc-shaped matching surface and the inner wall surface of the shell are positioned in the same cylindrical surface. The inner wall of the shell in the scheme is used for installing a stator or stator teeth, and the stator or the stator teeth are clung to the inner wall of the shell. According to the scheme, the reserved channel is formed in the inner wall of the shell of the motor, the cooling water pipe is embedded in the reserved channel, the water pipe matching surface is tightly attached to the inner wall of the corresponding reserved channel, and the arc matching surface and the inner wall surface of the shell are located in the same cylindrical surface, so that the stator or the stator teeth are not affected to be attached to the inner wall of the shell, namely, the installation of the stator or the stator teeth is not affected; meanwhile, the arc-shaped matching surface is tightly attached to the stator or the stator teeth, and the contact area between the cooling water pipe and the stator or the stator teeth can be effectively increased through the arc-shaped matching surface, so that the absorption (cooling effect improvement) of the cooling water in the cooling water pipe to the heat of the shell and the stator is improved, the heat dissipation efficiency of the motor is effectively improved, and the problems of motor efficiency reduction, service life shortening, epoxy expansion cracking and the like caused by overhigh temperature rise of the motor are prevented. On the other hand, this scheme inlays condenser tube in the reservation channel of casing inner wall, so, condenser tube need not to occupy the space in the motor, can not increase the motor volume because of condenser tube's setting.
Preferably, two ends of each cooling water pipe are connected with pipe joints, the casing at two ends of each reserved channel is provided with pipe joint mounting holes, the pipe joints are mounted in the corresponding pipe joint mounting holes, and one end, facing the inner wall of the casing, of each pipe joint is completely accommodated in the pipe joint mounting hole. Therefore, on one hand, the pipe joint can be prevented from protruding out of the inner side of the inner wall of the shell to influence the installation of the stator or stator teeth; on the other hand, the convenient cooling water pipe is connected with an external cooling water path through a pipe joint.
Preferably, a mounting hole step surface is arranged in the pipe joint mounting hole, a pipe joint step surface is arranged on the pipe joint, the pipe joint step surface is propped against the mounting hole step surface, and the pipe joint is mounted in the pipe joint mounting hole through a bolt. Thus, the positioning and the installation of the pipe joint are convenient.
Preferably, the water inlet water diversion device further comprises a water inlet water diversion device and a water return water diversion device, wherein the water inlet water diversion device and the water return water diversion device are positioned outside the casing, a plurality of water inlet connectors in one-to-one correspondence with the cooling water pipes are arranged on the water inlet water diversion device, a plurality of water return connectors in one-to-one correspondence with the cooling water pipes are arranged on the water return water diversion device, the pipe connector at one end of each cooling water pipe is connected with the corresponding water inlet connector, and the pipe connector at the other end of each cooling water pipe is connected with the corresponding water return connector. Therefore, each cooling water pipe is connected in parallel through the water inlet water diversion row and the water return water diversion row, so that the cooling water is convenient to supply and recycle.
Preferably, the casing comprises an upper casing and a lower casing, the upper casing and the lower casing are connected into a whole through bolts, the inner wall surfaces of the upper casing and the lower casing are respectively provided with the reserved channel, the water inlet water distribution row comprises an upper water inlet water distribution row positioned at the outer side of the upper casing, a lower water inlet water distribution row positioned at the outer side of the lower casing and a connecting hose for connecting the upper water inlet water distribution row and the lower water inlet water distribution row, and the upper water inlet water distribution row and the lower water inlet water distribution row are respectively provided with a water inlet joint; the water return water diversion row comprises an upper water return water diversion row positioned at the outer side of the upper shell, a lower water return water diversion row positioned at the outer side of the lower shell and a connecting hose for connecting the upper water return water diversion row and the lower water return water diversion row, wherein water return connectors are arranged on the upper water return water diversion row and the lower water return water diversion row, a pipe joint at one end of a cooling water pipe in the upper shell is connected with a water inlet connector on the upper water return water diversion row, and a pipe joint at the other end of the cooling water pipe in the upper shell is connected with a water return connector on the upper water return water diversion row; the pipe joint at one end of the cooling water pipe in the lower shell is connected with the water inlet joint on the lower water inlet water distribution bar, and the pipe joint at the other end of the cooling water pipe in the lower shell is connected with the water return joint on the lower water return water distribution bar. Therefore, the manufacturing and assembly errors of the upper shell and the lower shell can be adapted through the connecting hose, and the water inlet joint on the water inlet water distribution row and the water return joint on the water return water distribution row can be smoothly connected with the corresponding pipe joint.
Preferably, both ends of the cooling water pipe are connected with the pipe joint through threaded connection or welding.
Preferably, the cross section of the reserved channel is semicircular, and the cross section of the water pipe matching surface is correspondingly semicircular. Thus, the water pipe matching surface is tightly attached to the inner wall of the corresponding reserved channel.
Preferably, the cooling water pipe is a copper pipe, and the cooling water pipe is embedded in the corresponding reserved channel through rolling. The cooling water pipe is embedded in the corresponding reserved channel through rolling, and can deform to a certain extent under the rolling action, so that the water pipe matching surface is tightly attached to the inner wall of the corresponding reserved channel.
Preferably, the arc-shaped matching surface is formed on the cooling water pipe in the process of being embedded in the corresponding reserved channel through rolling. Therefore, on one hand, the water pipe matching surface is tightly attached to the inner wall of the corresponding reserved channel, and on the other hand, the arc-shaped matching surface is formed on the cooling water pipe through rolling, so that the arc-shaped matching surface is convenient to actually form.
Preferably, the same reserved channel consists of one circle of annular channels or 2-5 circles of annular channels which are connected end to end in sequence, and the same cooling water pipe correspondingly consists of one circle of annular channels or 2-5 circles of annular channels which are connected end to end in sequence. The length overlength of same condenser tube can reduce the heat absorption cooling effect of the cooling water in the condenser tube, therefore in this scheme, same condenser tube comprises round annular pipeline or 2-5 round annular pipeline that end to end links to each other in proper order, so, can guarantee the heat absorption cooling effect of the cooling water in the condenser tube.
The beneficial effects of the utility model are as follows: the heat dissipation efficiency of the motor can be effectively improved, so that the problems of motor efficiency reduction, service life shortening, epoxy expansion cracking and the like caused by overhigh temperature rise of the motor are prevented.
Drawings
Fig. 1 is a schematic three-dimensional structure of a motor cooling water channel structure of the present utility model.
Fig. 2 is a schematic view showing a partial sectional structure of a cooling water channel structure of a motor according to the present utility model.
Fig. 3 is a schematic view of a partial cross-sectional structure at A-A in fig. 2.
Fig. 4 is a partial enlarged view at B in fig. 3.
Fig. 5 is a schematic view showing a three-dimensional structure of a cooling water pipe of a motor cooling water channel structure according to the present utility model.
In the figure:
the shell 1, the reserved channel 1.0, the upper shell 1.1, the lower shell 1.2 and the pipe joint mounting hole 1.3;
cooling water pipe 2, water pipe mating surface 2.1, arc mating surface 2.2;
a water inlet water diversion row 3, a water inlet joint 3.0, an upper water inlet water diversion row 3.1, a lower water inlet water diversion row 3.2 and a water inlet connecting hose 3.3;
a backwater water diversion drain 4, an upper backwater water diversion drain 4.1, a lower backwater water diversion drain 4.2, and a backwater connecting hose 4.3;
the pipe joint 5 and the pipe joint step surface 5.1.
Detailed Description
First embodiment: as shown in fig. 1, 2, 3, 4 and 5, a cooling water channel structure of a motor comprises a casing 1 and a plurality of cooling water pipes 2. The inner wall surface of the shell is a cylindrical surface, the inner wall of the shell is used for installing a stator or stator teeth, and the stator or the stator teeth are clung to the inner wall of the shell. The inner wall surface of the shell is provided with a plurality of reserved channels 1.0 which are distributed in an annular way, and each reserved channel is distributed along the axial direction of the shell in turn. The cooling water pipes 2 are in one-to-one correspondence with the reserved channels. The cooling water pipes 2 are embedded in the corresponding reserved channels. The cooling water pipes extend and are distributed along the corresponding reserved channels. The outer wall surface of the part of the cooling water pipe facing the inner wall of the reserved channel is a water pipe matching surface 2.1, the water pipe matching surface is matched with the inner wall surface of the corresponding reserved channel, and the water pipe matching surface is tightly attached to the inner wall of the corresponding reserved channel. The outer wall surface of the part of the cooling water pipe facing the notch of the reserved channel is an arc-shaped matching surface 2.2, the arc-shaped matching surface covers the notch of the corresponding reserved channel, and the arc-shaped matching surface and the inner wall surface of the shell are positioned in the same cylindrical surface. In this embodiment, the outer wall surface of the cooling water pipe is composed of a water pipe mating surface and an arc-shaped mating surface.
According to the embodiment, the reserved channel is formed in the inner wall of the shell of the motor, the cooling water pipe is embedded in the reserved channel, the water pipe matching surface is tightly attached to the inner wall of the corresponding reserved channel, and the arc matching surface and the inner wall surface of the shell are positioned in the same cylindrical surface, so that the stator or the stator teeth are not affected to be attached to the inner wall of the shell, namely the installation of the stator or the stator teeth is not affected; meanwhile, the arc-shaped matching surface is tightly attached to the stator or the stator teeth, and the contact area between the cooling water pipe and the stator or the stator teeth can be effectively increased through the arc-shaped matching surface, so that the absorption (cooling effect improvement) of the cooling water in the cooling water pipe to the heat of the shell and the stator is improved, the heat dissipation efficiency of the motor is effectively improved, and the problems of motor efficiency reduction, service life shortening, epoxy expansion cracking and the like caused by overhigh temperature rise of the motor are prevented. On the other hand, this scheme inlays condenser tube in the reservation channel of casing inner wall, so, condenser tube need not to occupy the space in the motor, can not increase the motor volume because of condenser tube's setting.
Specifically, as shown in fig. 1, 2, 3 and 4, a cooling water channel structure of a motor further comprises an inlet water diversion row 3 and a return water diversion row 4. The two ends of each cooling water pipe are connected with pipe joints 5. The water inlet and water distribution row and the water return and water distribution row are positioned at the outer side of the shell. The water inlet water distribution row is provided with a plurality of water inlet connectors 3.0 which are in one-to-one correspondence with the cooling water pipes, and the water return water distribution row is provided with a plurality of water return connectors which are in one-to-one correspondence with the cooling water pipes. The pipe joint at one end of the cooling water pipe is connected with the corresponding water inlet joint, and the pipe joint at the other end of the cooling water pipe is connected with the corresponding water return joint. Therefore, each cooling water pipe is connected in parallel through the water inlet water diversion row and the water return water diversion row, so that the cooling water is convenient to supply and recycle. On the other hand, each cooling water pipe is distributed in parallel, so that the influence on the heat absorption and cooling effects of cooling water in the cooling water pipe due to overlong length of the same cooling water pipe can be avoided.
Further, as shown in fig. 1, 2 and 5, the same reserved channel is composed of a circle of annular channels or 2-5 circles of annular channels which are connected end to end in sequence, and the same cooling water pipe is correspondingly composed of a circle of annular channels or 2-5 circles of annular channels which are connected end to end in sequence. In this embodiment, the same reserved channel is composed of 3 annular channels which are connected end to end in sequence, and the same cooling water pipe is also correspondingly composed of 3 annular channels which are connected end to end in sequence. The length overlength of same condenser tube can reduce the heat absorption cooling effect of the cooling water in the condenser tube, therefore in this scheme, same condenser tube comprises 3 rings of annular pipeline that end to end links to each other in proper order, so, can guarantee the heat absorption cooling effect of the cooling water in the condenser tube.
Further, as shown in fig. 4, the casing at two ends of each reserved channel is provided with a pipe joint mounting hole 1.3. The pipe joint mounting hole penetrates through the inner side wall and the outer side wall of the shell. The pipe joint 5 is installed in the corresponding pipe joint installation hole, and one end of the pipe joint facing the inner wall of the casing is completely accommodated in the pipe joint installation hole. Therefore, on one hand, the pipe joint can be prevented from protruding out of the inner side of the inner wall of the shell to influence the installation of the stator or stator teeth; on the other hand, the convenient cooling water pipe is connected with an external cooling water path through a pipe joint.
The pipe joint mounting hole is internally provided with a mounting hole step surface. The pipe joint is provided with a pipe joint step surface 5.1. The pipe joint step surface is propped against the installation hole step surface, and the pipe joint is installed in the pipe joint installation hole through a bolt. Thus, the positioning and the installation of the pipe joint are convenient.
Further, both ends of the cooling water pipe are connected with the pipe joint through threaded connection or welding. In this embodiment, both ends of the cooling water pipe are connected to the corresponding pipe joints by welding.
Further, as shown in fig. 4, the cross section of the reserved channel is semicircular, and the cross section of the water pipe matching surface is correspondingly semicircular. Thus, the water pipe matching surface is tightly attached to the inner wall of the corresponding reserved channel.
In the second embodiment, the rest of the structure of the present embodiment is different from that of the first embodiment in that,
as shown in fig. 1, the casing 1 includes an upper casing 1.1 and a lower casing 1.2. The upper casing and the lower casing are connected into a whole through bolts. The inner wall surfaces of the upper shell and the lower shell are respectively provided with the reserved channels, and the number of the reserved channels on the inner wall surfaces of the upper shell and the lower shell is the same. The water inlet water diversion row 3 comprises an upper water inlet water diversion row 3.1 positioned at the outer side of the upper shell, a lower water inlet water diversion row 3.2 positioned at the outer side of the lower shell and a water inlet connecting hose 3.3 for connecting the upper water inlet water diversion row and the lower water inlet water diversion row. The upper water inlet water distribution row and the lower water inlet water distribution row are respectively provided with a water inlet joint. The backwater water diversion row 4 comprises an upper backwater water diversion row 4.1 positioned at the outer side of the upper casing, a lower backwater water diversion row 4.2 positioned at the outer side of the lower casing and a backwater connecting hose 4.3 for connecting the upper backwater water diversion row and the lower backwater water diversion row. The upper backwater water diversion row and the lower backwater water diversion row are respectively provided with a backwater joint. The pipe joint at one end of the cooling water pipe in the upper shell is connected with the water inlet joint on the upper water inlet water distribution bar, and the pipe joint at the other end of the cooling water pipe in the upper shell is connected with the water return joint on the upper water return water distribution bar. The pipe joint at one end of the cooling water pipe in the lower shell is connected with the water inlet joint on the lower water inlet water distribution bar, and the pipe joint at the other end of the cooling water pipe in the lower shell is connected with the water return joint on the lower water return water distribution bar. Therefore, the manufacturing and assembly errors of the upper shell and the lower shell can be adapted through the connecting hose, and the water inlet joint on the water inlet water distribution row and the water return joint on the water return water distribution row can be smoothly connected with the corresponding pipe joint.
The third embodiment, the rest of the structure of this embodiment refers to the first embodiment or the second embodiment, which is different in that,
the cooling water pipe is a copper pipe and is embedded in the corresponding reserved channel through rolling. The cooling water pipe is embedded in the corresponding reserved channel through rolling, and can deform to a certain extent under the rolling action, so that the water pipe matching surface is tightly attached to the inner wall of the corresponding reserved channel.
Further, the arc-shaped matching surface is formed on the cooling water pipe in the process of being embedded in the corresponding reserved channel through rolling. Therefore, on one hand, the water pipe matching surface is tightly attached to the inner wall of the corresponding reserved channel, and on the other hand, the arc-shaped matching surface is formed on the cooling water pipe through rolling, so that the arc-shaped matching surface is convenient to actually form.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, and any simple modification, variation and equivalent transformation of the above embodiment according to the technical substance of the present utility model still fall within the scope of the technical solution of the present utility model.
Claims (10)
1. A motor cooling water channel structure, comprising:
the inner wall surface of the shell is a cylindrical surface, a plurality of reserved channels which are annularly distributed are arranged on the inner wall surface of the shell, and each reserved channel is sequentially distributed along the axial direction of the shell;
the cooling water pipes are embedded in the corresponding reserved channels, the cooling water pipes extend along the corresponding reserved channels, the outer wall surfaces of the part of the cooling water pipes facing the inner walls of the reserved channels are water pipe matching surfaces, the water pipe matching surfaces are matched with the inner wall surfaces of the corresponding reserved channels, and the water pipe matching surfaces are closely attached to the inner walls of the corresponding reserved channels; the outer wall surface of the part of the cooling water pipe facing the notch of the reserved channel is an arc-shaped matching surface, the arc-shaped matching surface covers the corresponding notch of the reserved channel, and the arc-shaped matching surface and the inner wall surface of the shell are positioned in the same cylindrical surface.
2. The motor cooling water channel structure according to claim 1, wherein the two ends of each cooling water pipe are connected with pipe joints, the casing at the two ends of each reserved channel is provided with pipe joint mounting holes, the pipe joints are mounted in the corresponding pipe joint mounting holes, and one end of each pipe joint, which faces the inner wall of the casing, is completely accommodated in the pipe joint mounting hole.
3. The motor cooling water channel structure according to claim 2, wherein a mounting hole step surface is arranged in the pipe joint mounting hole, a pipe joint step surface is arranged on the pipe joint, the pipe joint step surface abuts against the mounting hole step surface, and the pipe joint is mounted in the pipe joint mounting hole through a bolt.
4. A motor cooling water channel structure according to claim 2 or 3, further comprising a water inlet water distribution row and a water return water distribution row, wherein the water inlet water distribution row and the water return water distribution row are positioned outside the casing, a plurality of water inlet connectors corresponding to the cooling water pipes one by one are arranged on the water inlet water distribution row, a plurality of water return connectors corresponding to the cooling water pipes one by one are arranged on the water return water distribution row, a pipe joint at one end of the cooling water pipe is connected with the corresponding water inlet connector, and a pipe joint at the other end of the cooling water pipe is connected with the corresponding water return connector.
5. The motor cooling water channel structure according to claim 4, wherein the casing comprises an upper casing and a lower casing, the upper casing and the lower casing are connected into a whole through bolts, the reserved channels are arranged on the inner wall surfaces of the upper casing and the lower casing, the water inlet water distribution row comprises an upper water inlet water distribution row positioned on the outer side of the upper casing, a lower water inlet water distribution row positioned on the outer side of the lower casing and a connecting hose for connecting the upper water inlet water distribution row and the lower water inlet water distribution row, and water inlet connectors are arranged on the upper water inlet water distribution row and the lower water inlet water distribution row; the water return water diversion row comprises an upper water return water diversion row positioned at the outer side of the upper shell, a lower water return water diversion row positioned at the outer side of the lower shell and a connecting hose for connecting the upper water return water diversion row and the lower water return water diversion row, wherein water return connectors are arranged on the upper water return water diversion row and the lower water return water diversion row, a pipe joint at one end of a cooling water pipe in the upper shell is connected with a water inlet connector on the upper water return water diversion row, and a pipe joint at the other end of the cooling water pipe in the upper shell is connected with a water return connector on the upper water return water diversion row; the pipe joint at one end of the cooling water pipe in the lower shell is connected with the water inlet joint on the lower water inlet water distribution bar, and the pipe joint at the other end of the cooling water pipe in the lower shell is connected with the water return joint on the lower water return water distribution bar.
6. A motor cooling water channel structure according to claim 2 or 3, wherein both ends of the cooling water pipe are connected with the pipe joint by screw connection or welding.
7. A motor cooling water channel structure according to claim 1, 2 or 3, wherein the cross section of the reserved channel is semicircular, and the cross section of the water pipe matching surface is correspondingly semicircular.
8. A motor cooling water channel structure according to claim 1, 2 or 3, wherein the cooling water pipe is a copper pipe, and the cooling water pipe is embedded in the corresponding reserved channel by rolling.
9. The motor cooling water channel structure according to claim 8, wherein the arc-shaped matching surface is formed on the cooling water pipe in the process of being embedded in the corresponding reserved channel by rolling.
10. A motor cooling water channel structure according to claim 1, 2 or 3, wherein the same reserved channel is composed of one circle of annular channels or 2-5 circles of annular channels which are connected end to end in turn, and the same cooling water pipe is also composed of one circle of annular channels or 2-5 circles of annular channels which are connected end to end in turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320423325.5U CN219611503U (en) | 2023-03-02 | 2023-03-02 | Motor cooling water channel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320423325.5U CN219611503U (en) | 2023-03-02 | 2023-03-02 | Motor cooling water channel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219611503U true CN219611503U (en) | 2023-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320423325.5U Active CN219611503U (en) | 2023-03-02 | 2023-03-02 | Motor cooling water channel structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN219611503U (en) |
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2023
- 2023-03-02 CN CN202320423325.5U patent/CN219611503U/en active Active
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